The ISO 2834-3: 2008 standard specifies a laboratory preparatory method for testing prints using Screen Printing inks. This section details how to apply Screen Printing inks evenly on substrates and ensure repeatability of inks coverage and reflectance data for test prints. The standard covers specific requirements from ink film thickness and viscosity to inks systems and is applicable to a variety of substrates such as paper, plastics and metals. Test prints are mainly used for Optical inspection testing, Mechanical Property and chemical resistance assessment. This standard supports the application of related standards such as ISO 2846-4 and ISO 2836 to ensure the accuracy and conformity of test results.